Clamp slide for linear guide

Abstract

A clamp slide for use in a linear guide includes a slide body, two piston units disposed in the slide body, two elastic members stopped against the piston units, and two fluid pressure cylinders pushing the piston units to move toward a direction against restoring forces exerted by the elastic members. Further, a moveable member is disposed in each of the piston units and pushed by an inclined plane of a lateral cover to push a braking member, such that a rail is clamped by the left and right braking members. The lateral cover can be assembled in different ways according to actual needs for enabling the inclined plane to perform opposite tilt direction. As such, the clamp slide of the present invention has the effects of simplifying structure and reducing cost.

Description

BACKGROUND OF THE INVENTION1. Field of the Invention[0001]The present invention relates to a linear guide and more particularly, to a clamp slide for use in a linear guide.2. Description of the Related Art[0002]DE 102009008815 B4 uses a spring to apply a force to a sliding wedge, such that the sliding wedge pushes balls through its inclined plane to generate a clamping force. By this way, the sliding wedge is clamped on the rail. When an air pressure is applied to a piston, the spring is pushed by the piston to be compressed, such that the clamping force is released. However, this prior art has problems of many components, inconvenient assembly, and high manufacturing cost, and further, the air piping is arranged complicatedly, so a lot of sealing members are used to maintain proper sealing effect.[0003]U.S. Pat. No. 7,124,861 B2 discloses similar technical features as the aforesaid prior art. A compression spring is used to apply a force to a first piston, and then the first piston...

AI Technical Summary

Benefits of technology

The present invention provides a clamp slide for use in a linear guide that simplifies structure, reduces manufacturing cost, and provides an optimum clamping force. By changing the lateral covers in assembly way for meeting different requirements, the number of components can be reduced, simplifying structure and reducing manufacturing cost. The braking pads are easy to replace and adjust in height according to the rails with different specifications. The second pistons have a receiving slot for eliminating abnormal noises generated when hitting a partition wall. The slide body has a pin hole and spring covers have a positioning concave portion to prevent the spring cover from being accidentally turned to open. A fixture is provided to allow for easy opening and safe operation.

Problems solved by technology

However, this prior art has problems of many components, inconvenient assembly, and high manufacturing cost, and further, the air piping is arranged complicatedly, so a lot of sealing members are used to maintain proper sealing effect.

However, this prior art has problems of many components, inconvenient assembly, and high manufacturing cost, and further, due to the limitation of the space in a housing, only two pistons can be used, resulting in lower braking force.

However, the space used to receive the disk spring is not enough, so the braking force generated by the braking rod is insufficient under the restoring force of the disk spring.

Further, since the pistons located at two opposite sides of the braking rod are arranged in a face-to-face manner, the braking rod may be twisted due to the unbalanced forces generated by the two opposite pistons, thereby affecting the braking force.

Images